Hydrocarbon motor



May 11 ,1926. 1,583,959

H. D. CHURCH HYDROCARBON MOTOR Filed August '7, 1917 2 ,Sheets-Sheet l l f r ATTORNEY May 11 1926.

1,583,959 H. D. CHURCH l HYDROCARBON MOTOR Filed-Augusta, 1917 2 sheets-sheet 2 INVENTOR ATTORNEY Patented May' lll, 122@ I HAROLD D. CHURCH, 0F DETRTT, IMITCHTGAN, ASSTGNR T0 PACKARD ovvie Moron. can.

COMPANY, 0F DETTE/01T, MIIICHGAT, A CRFORATION 0F MICHTGAN.

nvnnooannolv inercia.

Application filed August 7, 1917. Serial No. 184,984.

This invention relates to motor vehicles and more particularly to the means for contro-lling the throttle valve and mixture of the carbureter. ln construct-ions as heretofore made it has been the practice to provide both a hand and toot operated means tor controlling the throttle valve, either of which can be actuated independently or" the other. yTn certain classes of vehicles fat 16 to the however, it is desirable to provide the pedal means only. This invention is concerned with this latter class and consists inthe combination With a pedal, of a hand device op; erative on the pedal to hold open the throttle valve when the operator desires to crank or start the motor. Another feature resides in the combination with the aforesaid pedal and hand device, of means actuated by said hand device for operating the choke valve of the carbureter so that when the throttle valve is opened by the hand device, the choke valve is simultaneously closed. A further :feature consists in the provision of another and independent means tor closing the choke valve. @ther features of the invention will be apparent from the description taken in connection with the drawings, in .which Fig. 1 as a sectional view through a portion'ot a motor vehicle showinga carbureter controlling device constructed in accordance with this invention, and

lFig. 2 is a perspective vievvof a carbureter and the apparatus tor controlling the same.

Referring to the drawings which shovv one embodiment of the inventiorn'4 10 indicates a hydrocarbon engine having a carbureter 11 including a throttle valve 12 which controls the explosive mixture supplied to the engine and a choke valve 13 Which `controls the amount of air supplied to the carbureter. The throttle valve 12 is pivotally mounted in the carbureter and is provided with the arm 14 by meansl of which the valve may b'e J turned. For the purpose of actuating the valve a single means is provided which includes a A floor board 17 of the front of the body ot the vehicle. This pedal is formed With a toot pad 18 at one end thereof and the other end is bent to provide an upwardly extending portion 19 which by means of the link 20 is connected to the arm 14 of the throttlevalve.y It Will 5 thus be apparent that wifhen the pad 18 is depressed -the throttle lvalve will be moved in pedal 15 pivotally mounted a direction to open the same.. Tn order to with a lug 21 and a contractile spring 22 interposed between the same and the floor hoard 17. Adjacent the bent up portion 19 the pedal is provided with a bolt 23 threaded through the same which may be locked in any adjusted position by means of thelock nut 24.

As the throttle valve is automatically held in substantially closed position it is desirable to provide a means for holding it open vvhen the motor vehicle operator is cranking the motor. For this purpose a hand device is provided Which is operative on the pedal .to hold the same With the throttle valve in any desired open position. This device comprises a rock shaft 25 having its axis parallel With the pivot of the pedal and extending on both sides of the pedal. immediately under the pedal and adapted to act on the end of the bolt 23 is a cam 26 carried bv said shaft 25. At one endvthe shaft has y connected thereto for rotation therewith an arm 2'? which by means of a link 28 isf'connected to a' hand lever 29 pivoted at 30 to the dash 81 of the vehicle. This lever is adapted to be held in any position by means lever 2,9-is raised the cam 26 will be rotated i in a direction to raise the boltl `23 which through the connections to the throttle valve will move the latter in anv opening direction. As the hand device holds the throttle in ythis open position suflicient mixture will be admitted to the motor so that it may be started and Will operate at a speed so that it will Warm up quickly. Because of the loose connection between the pedal and the hand device it will be seen that the pedal may be i depressed as desired and that the hand device merely limits the extent of the closing movement of the same. .A

lin starting a motor. in addition to prolviding means for holding the throttle valve slightly open, itis also desirable Ato close or choke Ithe air intake-of the carbureter so that a very /rich mixture will be supplied to the engine. f For this purpose the rock shaft 25 at the end opposite the arm 27 loosely carries-anarm 34 which is yieldinglyv connected to the 'rock shaft by means ot a coil spring 35, one end of which is secured to the shaft and the other of which is fastened to the arm. The end of the arm 34 is connected to an arm 36 on the carbureter by means of the. link 37. Connected to rotate with the arm 36 isan arm 38 which by means of the adjustable link 39 is connected to an arm 40 carried by the spindle of the choke valve 13. It will be clear that the turning' movement of the arm 34 will be transmitted b-y means of these connections to the choke valve 13. Furthermore as the said arm is connected to the lrock shaft 25, when the hand device is moved to set the throttle valve in slightly open position, the choke valve will also be operated but in a closing or opposite direction to the throttle valve. An additional means is provided for operating the choke valve which may be manipulated independently of the rest of the vcontrolling apparatus. This auxiliary or independent means consists of a rod 41 projecting at vthe front of the vehicle and having its inner end connected to one arm of a rocker 42, the other arin of which by means of a link 43 is connected to an arm 44 rotatably connected to the arm 3G. It will be observed that when the rod 41 is pulled toward the left as viewed in Fig. 2, the choke valve Will be moved in a closing direction. This operation of the choke valve will also turn. the arm 34 but as'this arm is yieldingly connected kto the rock shaft 25 and the rock shaft is held against movement by the locking means for the. hand lever 29, it Will-be apparent that the arm 34 may move relative to the shaft 25 and theposition of the throttle valve will not be altered in any manner by the said operation of the choke valve.,

Although a. particular form of carbureter is shown in the drawings, it will be understood that the invention is not limited to use y in connection with any particular type of carbureter. lFurthermore, although a speciic4 embodiment of the invention has been described it is apparent that many of the details may be varied Without departing from the spirit thereof.

Having thus described my invention, what I claim and.- desire to secure by Letters Patent is:

1. In a hydrocarbon engine,in combination a carbureter having a throttle valve and a choke valve,l 'means for operating saidl throttle valve comprising apedal, spring `means normally closing said throttle valve,

and auxiliary means operative on said pedal to hold it in any desired position, having connectionsto lthe choke valve lwhereby the i latteris closed when the auxiliary means is operated to open the throttle valve- 2. The combination with a hydrocarbon motor having a carbureter provided with a throttle valve, of a pedal positively connected to said valve for operating the latter in one direction, spring means for actuating the valve in the other direction, a hand device operative on said pedal to rock the same to open the valve and hold the latter in such open position, a choke valve 'for the carbureter, and means actuated by said hand device to adjust said choke valve.

3. In a hydrocarbon engine, in coinbiiiation, a carbureter having a throttle valve, a pedal positivelyr connected to the valve for operating the latter in one direction, spring means for actuating the valve in the other direction, avhand device operative on said pedal to rock the same to open the valve and hold the latter in such open position, a l

choke valve for the carbureter, and means actuated by the said hand device to closethe choke valve as the throttle valve .is opened.

4. In a hydrocarbon engine, in combination, a carbureter having a throttle valve,

a pedal positively connected to the valve for means actuated by the said hand device' to close the choke valve asthe throttle valve is opened, and an additional manually operable means for closing the choke valve.

5. The' combination with a hydrocarbon motor having a carbureter provided With a throttle valve, means positively connected to the valve foroperating the latter, Va hand device operative on said means to open said valve and hold itopen, a choke valve for the carbureter, and means actuated by said device to adjust said choke valve.

6. In a hydrocarbon engine, in combination, a carbureter having a throttle valve, a pedal positively connected to the valve for operating the latter in one direction, spring means for actuating the valve in the other direction, a rock shaft, means for operating the said shaft and holding it in any` position, and a cam on said shaft adapted to act on said pedal. -1

7 In a hydrocarbon engine, in combination, a carbureter having a throttle valve, a

direction, a rock shaft, means for operating the said -shaft and holding it in any position, a choke valve for the carbureter and means whereby rotation of said shaft actuates both the choke valve and pedal.

9. In a hydrocarbon engine, in combination, `a carburetor having a throttle valve, a pedal positively connected to the valve for operating the latter in one direction, spring means for actuating the valve in the other direction, a rock shaft, means for operating the said shaft and holding it in any position, a choke valve for the carbureter, a yielding connection between said shaft vand latter Valve, connections between said shaft and pedal, whereby rotation of said s aft actuates both valves, and'means for manually operating said choke valve independently of the throttle valve.

10. In a motor vehicle, in combination, a hydrocarbon motor havinga oarbureter provided with a throttle valve and a choke valve for controlling the supply of air to the carbureter, a device for controlling4 the throttle valve including a spring acting to I close the same, means to operate the choke valve and means actuated by moving the choke valve in its closing direction only to' move the throttle valvein its opening direction whereby the throttle valve may be operatedl independently of the choke. valve when the latter is open.

11. The combination with a hydrocarbon motor having a `carbureter provided with a throttle yvalve and a choke valve for con-k trolling the supply of air to the carbureter, of means to control the throttle valve, means to control the choke valve, and means operated only by closing the choke valve to open Athe throttle valve whereby the throttle valve may be operated independently of the choke valve when the latter' is open.

12. In a hydrocarbon motor having a carbureter,I a valve regulating the supply of combustible mixture from the carbureter to the motor, a choke valve regulating the supply of air to the carbureter, means to operate the mixture valve and means to operate the air valve; the improvement comprising means operated only by the closing movement of the air valve to open the mixture valve.

13. In a hydrocarbon motor having a carbureter, a valve regulating the supply of combustible mixture from the carburetor to lthe motor, a -choke valve regulating the supply of air to the carbureter, means to operate the mixture valve and means to operate the air valve; the improvement comprising a one-way connection between the air valve and the mixture valve whereby the mixture valve is opened by the closing move ment of the air valve, but the mixture valve Inay be operated independently of the air valve when the latter is open. i

In testimonyv whereof 'I yaflix my signature. l

HAROLD D. CHURCH'. 

